EP0260248A2 - Supporting framework for suspended roofs - Google Patents

Supporting framework for suspended roofs Download PDF

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Publication number
EP0260248A2
EP0260248A2 EP87890006A EP87890006A EP0260248A2 EP 0260248 A2 EP0260248 A2 EP 0260248A2 EP 87890006 A EP87890006 A EP 87890006A EP 87890006 A EP87890006 A EP 87890006A EP 0260248 A2 EP0260248 A2 EP 0260248A2
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Prior art keywords
chain
links
chains
cross
framework
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Granted
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EP87890006A
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German (de)
French (fr)
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EP0260248A3 (en
EP0260248B1 (en
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Erich Dr. Frantl
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/14—Suspended roofs

Definitions

  • the invention relates to a suspended roof structure in which all tension members are used for the actual load-bearing action and which is so stiff due to the spatial arrangement of the support members that a lifting of the roof surface caused by wind suction or a wind-induced swinging of the roof is suppressed.
  • suspended roof constructions are the most economical way to cover large, column-free spans, there have been problems with wind forces since this type of construction was used, since these can achieve multiple values in the pressure and suction areas compared to the dead weight of these very light roof constructions, and thus the hanging construction can cause both local ascent by wind suction and vibrate.
  • the invention has for its object to provide a suspended roof structure over square, oval or round plan, which excludes the aforementioned disadvantages due to its rigidity and is still very light.
  • cross-sectionally weaker link chains with joint points preferably offset by half the chain link length beard chain strands are connected to the chain links of cross-section, cross-sectionally thick frame chains in the articulation points, whereby the dead weight of the entire chain network is entirely absorbed by the weaker cross-section chain structure, but the payload attacking in the articulation points and at the same time crossing points of the chains is aliquot to the cross-sections of the chain links the cross-sectionally weaker and the cross-sectionally thick frame chains are removed.
  • the framework chains consist of links which are connected to one another in an articulated manner, the articulation points of adjacent framework chains being offset from one another, preferably offset by half the link length, and that further framework chains consisting of links having a larger cross section than the links of the first framework chains are provided, whereby the links of the other framework chains are inserted between the hinge points of the weaker cross-section framework chain or at the fastening points on the edge of the structure.
  • the structure will initially be constructed from parallel, or in the case of oval to round building plan, from radially running, light framework chains with a corresponding sag.
  • the chain links of the individual chains are offset from the neighboring chains by half the link length.
  • the one on the links with a smaller cross-section takes over the existing tensile stresses from its own weight and the weight of the heavier two Frame chains, only more payload proportions in relation to their own cross-section to the cross-section of the diagonally running heavier frame chain.
  • the individual cross-sections and cross-sectional relationships can be determined on the basis of the dead weight and the maximum payloads so that an economically designed supporting structure is created. Since the chain links (bars) of the lighter chains always lie above the (higher than) the crossing points of the adjacent, heavier link chain links, they act against lifting the roof by wind suction in connection with the surrounding, diamond-shaped, heavier link chain links such as explosive devices. Strung together and offset by half the length of the link, they fill the entire roof and stiffen it so that it cannot swing open at any point.
  • the smaller vibrations possible due to the material elasticity of the rods can be reduced by inserting spring-damper elements in the light chain links.
  • the light chain links can be divided and held apart in a diamond-shaped manner by means of transverse spring and damper elements.
  • FIG. 3 An example of a suspended roof structure is shown in plan view in FIG. 3.
  • the structure consists of structure chains running parallel to each other between the edges of the structure, e.g. rod-shaped members 2 which are connected to one another via articulation points 3.
  • the articulation points 3 of adjacent structural chains are offset from one another by half the length of the links 2.
  • additional supporting structure chains which consist of e.g. rod-shaped members 4 are provided.
  • the links 4 are inserted between the articulation points 3 or at the edge of the structure between articulation points 3 and attachment points on the edge of the building.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Body Structure For Vehicles (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Paper (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

To prevent the vibrations caused by wind in suspended-roof supporting frameworks, the suspended-roof supporting framework has main chains composed of bar-shaped main links of relatively small cross section. The ends of these main links are connected to one another at joint centers, and the ends of the main chains are fastened to a stationary perimeter structure. The joint centers of adjacent main chains are connected by means of supplemental links of larger cross section. The supplemental links are larger in cross section than the main links, so they form supplemental chains which are heavier than the main chains. The supplemental chains extend obliquely relative to the main chains, and their ends are fastened to the perimeter structure.

Description

Die Erfindung betrifft ein Hängedachtragwerk, bei dem alle Zugglieder zur eigentlichen Tragwirkung herangezogen werden und welches durch die räumliche Anordnung der Tragglieder so steif ist, daß ein durch Windsog bewirktes Hochheben der Dachfläche oder ein winderregtes Schwingen des Daches unterdrückt wird.The invention relates to a suspended roof structure in which all tension members are used for the actual load-bearing action and which is so stiff due to the spatial arrangement of the support members that a lifting of the roof surface caused by wind suction or a wind-induced swinging of the roof is suppressed.

Obwohl Hängedachkonstruktionen die wirtschaftlichste Art zur Überdachung großer, stützenfreier Spannweiten sind, gibt es seit Einsatz dieser Konstruktionsart Probleme mit den Windkräften, da diese sowohl im Druck- als auch im Sogbereich gegenüber dem Eigengewicht dieser sehr leich­ten Dachkonstruktionen den mehrfachen Wert erreichen kön­nen und so die Hängekonstruktion sowohl zum örtlichen Aufsteigen durch Windsog als auch zum Schwingen bringen können.Although suspended roof constructions are the most economical way to cover large, column-free spans, there have been problems with wind forces since this type of construction was used, since these can achieve multiple values in the pressure and suction areas compared to the dead weight of these very light roof constructions, and thus the hanging construction can cause both local ascent by wind suction and vibrate.

Um die Schwingungs- und Durchschlagprobleme hintanzu­halten, sind bis heute mehrere Möglichkeiten bekannt. Die einfachste ist es, die Dachfläche so stark zu beschweren, daß ihr die Windkräfte nichts anhaben können. Verschie­dene weitere Möglichkeiten bestehen darin, die Hängekon­struktion in kurzen Abständen mit gegenläufig gekrimmten (konvexen) Spannseilen nach unten vorzuspannen, dies be­wirkt in etwa dasselbe wie die Aufbringung von Gewicht. Beide Möglichkeiten sind kostenaufwendig und schwer.To keep the vibration and penetration problems at bay, several options are known to date. The simplest is to weigh down the roof surface so much that the wind forces cannot harm it. Various other options are to pretension the hanging structure downwards at short intervals using oppositely curved (convex) tensioning ropes, which has the same effect as applying weight. Both options are expensive and difficult.

Der Erfindung liegt die Aufgabe zugrunde, ein Hängedach­tragwerk über eckigem, ovalem oder auch rundem Grundriß bereitzustellen, das durch seine Steifigkeit die vorer­wähnten Nachteile ausschließt und trotzdem sehr leicht ist.The invention has for its object to provide a suspended roof structure over square, oval or round plan, which excludes the aforementioned disadvantages due to its rigidity and is still very light.

Erfindungsgemäß wird dies dadurch erreicht, daß quer­schnittsschwächere Stabwerksketten mit vorzugsweise in halber Kettengliedlänge versetzten Gelenkpunkten benach­ barter Kettenstränge, mit den Kettengliedern sich kreu­zender, querschnittsstärkerer Stabwerksketten in den Gelenkpunkten verbunden sind, wobei das Eigengewicht des gesamten Kettennetzwerkes zur Gänze von der querschnitts­schwächeren Stabwerkskette aufgenommen wird, jedoch die in den Gelenkpunkten und gleichzeitig Kreuzungspunkten der Ketten angreifende Nutzlast aliquot zu den Quer­schnitten der Kettenglieder der querschnittsschwächeren und der querschnittsstärkeren Stabwerksketten abgetragen wird. Bevorzugt ist erfindungsgemäß, daß die Stabwerks­ketten aus miteinander gelenkig verbundenen Gliedern bestehen, wobei die Gelenkpunkte benachbarter Stabwerks­ketten zueinander versetzt, vorzugsweise um die halbe Gliedlänge versetzt sind, und daß weitere Stabwerksketten aus gegenüber den Gliedern der ersten Stabwerksketten einen größeren Querschnitt aufweisende Glieder vorgesehen sind, wobei die Glieder der weiteren Stabwerksketten zwi­schen den Gelenkpunkten der querschnittsschwächeren Stab­werkskette bzw. an den Befestigungspunkten am Bauwerkrand eingesetzt sind.According to the invention this is achieved in that cross-sectionally weaker link chains with joint points preferably offset by half the chain link length beard chain strands are connected to the chain links of cross-section, cross-sectionally thick frame chains in the articulation points, whereby the dead weight of the entire chain network is entirely absorbed by the weaker cross-section chain structure, but the payload attacking in the articulation points and at the same time crossing points of the chains is aliquot to the cross-sections of the chain links the cross-sectionally weaker and the cross-sectionally thick frame chains are removed. It is preferred according to the invention that the framework chains consist of links which are connected to one another in an articulated manner, the articulation points of adjacent framework chains being offset from one another, preferably offset by half the link length, and that further framework chains consisting of links having a larger cross section than the links of the first framework chains are provided, whereby the links of the other framework chains are inserted between the hinge points of the weaker cross-section framework chain or at the fastening points on the edge of the structure.

Das Tragwerk wird vorerst aus parallel laufenden oder bei ovalem bis rundem Bauwerksgrundriß aus radial laufenden, leichten Stabwerksketten mit entsprechendem Durchhang er­richtet. Die Kettengelenke der einzelnen Ketten sind je­weils zu den benachbarten Ketten um die halbe Gliedlänge versetzt.The structure will initially be constructed from parallel, or in the case of oval to round building plan, from radially running, light framework chains with a corresponding sag. The chain links of the individual chains are offset from the neighboring chains by half the link length.

Zwischen diesen Gelenken werden im Querschnitt größer gehaltene Stäbe (Glieder der Kette) montiert, die jedes Gelenk mit jedem benachbarten Gelenk verbinden. Wenn sämtliche Stäbe eingehängt sind, werden diese kraft- und formschlüssig mit den Gelenken und zueinander verbunden, so entstehen zwei weitere, schwerere Stabwerksketten (mit Gliedern mit größerem Querschnitt), die an ihren Kreu­zungspunkten zueinander und mit den Gelenken der leich­teren Stabwerkskette verbunden sind und ebenfalls von einem Bauwerksrand zum anderen verlaufen. Die Verbindung kann in jeder Art, z.B. durch Verschrauben, Vernieten, Verschweißen, Vergießen usw. erfolgen und muß nicht un­bedingt gelelenkig sein. Wird das so entstandene Tragnetz stets in den Gelenkpunkten mit den Lasten der Dachein­deckung, der Schneelast und Windlasten belastet, so über­nimmt die leichte Stabwerkskette (d.h. die an den Glie­dern mit geingerem Querschnitt) neben den bereits vor­handenen Zugspannungen aus seinem eigenen und dem Eigen­gewicht der schwereren beiden Stabwerksketten, nur mehr Nutzlastanteile im Verhältnis ihres eigenen Querschnittes zum Querschnitt der diagonal verlaufenden schwereren Stabwerkskette.Between these joints larger cross-section bars (links of the chain) are mounted, which connect each joint to every neighboring joint. When all the rods are hooked in, they are positively and positively connected to the joints and to each other, so two further, heavier frame chains (with links with a larger cross-section) are created, which are connected to each other at the points of intersection and to the joints of the lighter frame chain and also run from one edge of the building to another. The connection can be done in any way, for example by screwing, riveting, welding, casting etc. and does not necessarily have to be articulated. If the resulting support net is always loaded at the hinge points with the loads of the roof covering, the snow load and wind loads, the light framework chain (i.e. the one on the links with a smaller cross-section) takes over the existing tensile stresses from its own weight and the weight of the heavier two Frame chains, only more payload proportions in relation to their own cross-section to the cross-section of the diagonally running heavier frame chain.

Die Einzelquerschnitte und Querschnittsverhältnisse können auf Grund des Eigengewichtes und der maximalen Nutzlasten so bestimmt werden, daß ein ökonomisch aus­gelegtes Tragwerk entsteht. Da die Kettenglieder (Stäbe) der leichteren Ketten stets über den (höher als die) Kreuzungspunkten der benachbarten schwereren Stabwerks­kettenglieder liegen, wirken sie gegen Aufheben des Daches durch Windsog in Verbindung mit dem sie umgeben­den, rautenförmigen schwereren Stabwerkskettengliedern wie Sprengwerke. Aneiandergereiht und um die halbe Glied­länge versetzt, füllen sie das gesamte Dach und steifen es so aus, daß es an keinem Punkt zum Aufschwingen kommen kann.The individual cross-sections and cross-sectional relationships can be determined on the basis of the dead weight and the maximum payloads so that an economically designed supporting structure is created. Since the chain links (bars) of the lighter chains always lie above the (higher than) the crossing points of the adjacent, heavier link chain links, they act against lifting the roof by wind suction in connection with the surrounding, diamond-shaped, heavier link chain links such as explosive devices. Strung together and offset by half the length of the link, they fill the entire roof and stiffen it so that it cannot swing open at any point.

Die durch die Materialelastizität der Stäbe möglichen kleineren Schwingungen können durch Einsetzen von Feder-­Dämpferelementen in die leichten Kettenglieder noch her­abgesetzt werden. Um kleinste Dehnungen und Verformungen dampfen zu können, können die leichten Kettenglieder ge­teilt und mittles querliegender Feder- Dampferelemente rautenförmig auseinandergehalten werden.The smaller vibrations possible due to the material elasticity of the rods can be reduced by inserting spring-damper elements in the light chain links. In order to be able to steam the smallest expansions and deformations, the light chain links can be divided and held apart in a diamond-shaped manner by means of transverse spring and damper elements.

So kann jede beliebige Übersetzung erreicht werden, so daß die Dämpfung schon bei kleinsten Amplituden einsetzt, außerdem können schwache und daher billige Feder-Dämpfer­ elemente eingesetzt werden.So any translation can be achieved, so that the damping starts even with the smallest amplitudes, and weak and therefore cheap spring dampers elements are used.

Die Erfindung wird an Hand von schematischen Zeichnungen an Ausführungsbeispielen näher erläutert. Es wurden dabei zur Verdeutlichung Hängestabwerke mit nur wenigen Glie­dern dargestellt, tatsächlich sind solche Hängewerke meist wesentlich vielgliedriger.The invention is explained in more detail with reference to schematic drawings of exemplary embodiments. For the sake of clarity, hanging structures with only a few links were shown; in fact, such hanging plants are usually much more structured.

Ein Beispiel eines Hängedachtragwerkes ist in Fig. 3 in Draufsicht gezeigt. Das Tragwerk besteht aus zwischen Bauwerksrändern parallel zueinander verlaufenden Trag­werksketten aus z.B. stabförmigen Gliedern 2, die über Gelenkpunkte 3 miteinander verbunden sind. Die Gelenk­punkte 3 benachbarter Tragwerksketten sind zueinander um die halbe Länge der Glieder 2 versetzt.An example of a suspended roof structure is shown in plan view in FIG. 3. The structure consists of structure chains running parallel to each other between the edges of the structure, e.g. rod-shaped members 2 which are connected to one another via articulation points 3. The articulation points 3 of adjacent structural chains are offset from one another by half the length of the links 2.

In die zueinander parallelverlaufenden Tragwerksketten aus Gliedern 2 sind diagonal verlaufende weitere Trag­werkkketten, die aus z.B. stabförmigen Gliedern 4 be­stehen, vorgesehen. Die Glieder 4 sind zwischen den Gelenkpunkten 3 bzw. am Rand des Tragwerkes zwischen Gelenkpunkten 3 und Befestigungspunkten am Gebäuderand eingesetzt.In the mutually parallel supporting structure chains from links 2 are diagonally extending additional supporting structure chains, which consist of e.g. rod-shaped members 4 are provided. The links 4 are inserted between the articulation points 3 or at the edge of the structure between articulation points 3 and attachment points on the edge of the building.

Die Glieder 4 sind schwer bzw. haben einen größeren Querschnitt als die Glieder 2 der leichteren Trag­werksketten.

  • Fig. 1 zeigt die oben angeführte Sprengwerkwirkung des Kettengliedes 2 der leichten Tragwerkskette, wenn Sog­kräfte S im Gelenkpunkt 3 angreifen, die vom jeweils benachbarten Gelenkpunkt 3 ausgehenden, schweren Ketten­glieder 4 erhalten dabei Druckkräfte.
  • Fig. 2 zeigt ein Hängestabwerk im Aufriß. Die Randauf­lagerungen 1 des Hängedachtragwerkes sind durch Gelenke 3 auf den Mittellinien der Stützen bzw. Randträger des Bau­werkes dargestellt.
    Die dünnen Linien zeigen die leichteren Kettenglieder 2, die stärkeren Linien die schweren Stabwerkskettenglieder 4, die zwischen den Gelenken 3 hin und her laufen.
  • Fig. 4 zeigt eine Ansicht ähnlich Fig. 3 mit zwischen den leichten Kettengliedern 2 eingehängten Feder-Dampferele­menten 5. Alternativ dazu zeigt dieselbe Figur rautenför­mig aufgespaltene leichte Kettenglieder 6 mit dazwischen eingehängten schwächeren Feder-Dämpferelementen 7.
The links 4 are heavy or have a larger cross section than the links 2 of the lighter structure chains.
  • Fig. 1 shows the above-mentioned explosive effect of the chain link 2 of the lightweight structure chain when suction forces S act on the articulation point 3, the heavy chain links 4 starting from the adjacent articulation point 3 receive compressive forces.
  • Fig. 2 shows a suspension rod in elevation. The edge supports 1 of the suspended roof support structure are represented by joints 3 on the center lines of the supports or edge supports of the structure.
    The thin lines show the lighter chain links 2, the thicker lines the heavy frame chain links 4, which run back and forth between the joints 3.
  • FIG. 4 shows a view similar to FIG. 3 with spring damper elements 5 suspended between the light chain links 2. Alternatively, the same figure shows diamond-shaped light chain links 6 with weaker spring damper elements 7 suspended between them.

Claims (4)

1. Hängedachtragwerk, dadurch gekennzeichnet, daß quer­schnittsschwächere Stabwerksketten mit vorzugsweise in halber Kettengliedlänge versetzten Gelenkpunkten (3) benachbarter Kettenstränge, mit den Kettenglie­dern (4) sich kreuzender, querschnittsstärkerer Stab­werksketten in den Gelenkpunkten verbunden sind, wo­bei das Eigengewicht des gesamten Kettennetzwerkes zur Gänze von der querschnittsschwächeren Stabwerks­kette aufgenommen wird, jedoch die in den Gelenkpunk­ten (3) und gleichzeitig Kreuzungspunkten der Ketten angreifende Nutzlast aliquot zu den Querschnitten der Kettenglieder (2, 3) der querschnittsschwächeren und der querschnittsstärkeren Stabwerksketten abgetragen wird.1. Suspended roof structure, characterized in that cross-sectionally weaker framework chains with joint points preferably offset by half the chain link length (3) of adjacent chain strands, with the chain links (4) intersecting, cross-sectionally stronger framework chains are connected in the articulation points, the dead weight of the entire chain network being entirely of frame chain of weaker cross-section is included, but the payload attacking in the articulation points (3) and at the same time crossing points of the chains is transferred aliquot to the cross-sections of the chain links (2, 3) of the frame chain of weaker cross-section and the cross-sectionally thicker chain. 2. Hängedachtragwerk nach Anspruch 1, dadurch gekenn­zeichnet, daß die Stabwerksketten aus miteinander gelenkig verbundenen Gliedern (2) bestehen, wobei die Gelenkpunkte (3) benachbarter Stabwerksketten zuein­ander versetzt, vorzugsweise um die halbe Gliedlänge versetzt sind, und daß weitere Stabwerksketten aus gegenüber den Gliedern (2) der ersten Stabwerksketten einen größeren Querschnitt aufweisenden Gliedern (4) vorgesehen sind, wobei die Glieder (4) der weiteren Stabwerksketten zwischen den Gelenkpunkten (3) der querschnittsschwächeren Stabwerkskette bzw. an den Befestigungspunkten am Bauwerkrand (1) eingesetzt sind.2. Suspended roof structure according to claim 1, characterized in that the framework chains consist of articulated links (2), the articulation points (3) of adjacent framework chains being offset from one another, preferably offset by half the link length, and in that further framework chains from opposite the links (2) links (4) with a larger cross-section are provided for the first framework chains, the links (4) of the further framework chains being inserted between the articulation points (3) of the cross-sectionally weak framework chain or at the fastening points on the edge of the structure (1). 3. Hängedachtragwerk nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Kettenglieder (2) der leich­ten Stabwerkskette Feder-Dämpferelemente (5) enthalten.3. Suspended roof structure according to claim 1 or 2, characterized in that the chain links (2) of the lightweight frame chain contain spring-damper elements (5). 4. Hängedachtragwerk nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Kettenglieder (2) der leich­ ten Stabwerkskette rautenförmig aufgespaltet (6) sind und durch je ein quer zur Kettenachse liegendes Feder-Dampferelement (7) auseinandergespreizt sind.4. Suspended roof structure according to claim 1 or 2, characterized in that the chain links (2) the light th frame chain are diamond-shaped split (6) and are spread apart by a spring-damper element (7) lying transversely to the chain axis.
EP87890006A 1986-09-08 1987-01-14 Supporting framework for suspended roofs Expired - Lifetime EP0260248B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2406/86 1986-09-08
AT0240686A AT385307B (en) 1986-09-08 1986-09-08 HINGED ROOF FRAMEWORK

Publications (3)

Publication Number Publication Date
EP0260248A2 true EP0260248A2 (en) 1988-03-16
EP0260248A3 EP0260248A3 (en) 1989-05-03
EP0260248B1 EP0260248B1 (en) 1991-05-29

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ID=3533770

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Application Number Title Priority Date Filing Date
EP87890006A Expired - Lifetime EP0260248B1 (en) 1986-09-08 1987-01-14 Supporting framework for suspended roofs

Country Status (7)

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US (1) US4771582A (en)
EP (1) EP0260248B1 (en)
AT (2) AT385307B (en)
DE (1) DE3770381D1 (en)
ES (1) ES2001841B3 (en)
GR (2) GR880300121T1 (en)
ZA (1) ZA872111B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0494043A1 (en) * 1990-12-28 1992-07-08 Webasto Systemkomponenten GmbH Device for shading surfaces by means of a tensioned roofing membrane comprising photovoltaic elements

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2109149B2 (en) * 1971-02-26 1973-03-01 Raczat, Gunter, Dr Ing , 5800 Hagen HANGEDACH
EP0081609A1 (en) * 1981-12-10 1983-06-22 Johannes Lagendijk Suspended roof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137097A (en) * 1960-04-14 1964-06-16 Zeinetz Bertil Olov Roof structure
US3643391A (en) * 1969-10-03 1972-02-22 Sebastian Mollinger Roof construction
US3772836A (en) * 1971-04-12 1973-11-20 D Geiger Roof construction
US4581860A (en) * 1985-06-20 1986-04-15 Berger Horst L Saddle-shaped cable dome system for large span lightweight roof structures

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2109149B2 (en) * 1971-02-26 1973-03-01 Raczat, Gunter, Dr Ing , 5800 Hagen HANGEDACH
EP0081609A1 (en) * 1981-12-10 1983-06-22 Johannes Lagendijk Suspended roof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0494043A1 (en) * 1990-12-28 1992-07-08 Webasto Systemkomponenten GmbH Device for shading surfaces by means of a tensioned roofing membrane comprising photovoltaic elements

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Publication number Publication date
DE3770381D1 (en) 1991-07-04
EP0260248A3 (en) 1989-05-03
ES2001841A4 (en) 1988-07-01
ZA872111B (en) 1987-11-25
GR880300121T1 (en) 1988-12-16
AT385307B (en) 1988-03-25
ATA240686A (en) 1987-08-15
ATE63956T1 (en) 1991-06-15
ES2001841B3 (en) 1991-12-01
EP0260248B1 (en) 1991-05-29
GR3002176T3 (en) 1992-12-30
US4771582A (en) 1988-09-20

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